I want to define a function VectorToMatrix[list_, n_] that behaves as
follows:
VectorToMatrix[{a,b,c,d,e,f,g,h,i,j}, 4]//MatrixForm
0 a b c d
0 0 e f g
0 0 0 h i
0 0 0 0 j
Now n can be determined from Length[list], which will always be equal to
n choose 2 for some n. But I would rather input n to save that
computation. (I will be doing this for a lot of vectors.)
Any ideas?
Rob Pratt
Department of Mathematics
The University of North Carolina at Chapel Hill
CB# 3250, 331 Phillips Hall
Chapel Hill, NC 27599-3250
rpratt at math.unc.edu